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hxsmbw.h：源码内容
							/* ***** BEGIN LICENSE BLOCK ***** 
 * Version: RCSL 1.0/RPSL 1.0 
 *  
 * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved. 
 *      
 * The contents of this file, and the files included with this file, are 
 * subject to the current version of the RealNetworks Public Source License 
 * Version 1.0 (the "RPSL") available at 
 * http://www.helixcommunity.org/content/rpsl unless you have licensed 
 * the file under the RealNetworks Community Source License Version 1.0 
 * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl, 
 * in which case the RCSL will apply. You may also obtain the license terms 
 * directly from RealNetworks.  You may not use this file except in 
 * compliance with the RPSL or, if you have a valid RCSL with RealNetworks 
 * applicable to this file, the RCSL.  Please see the applicable RPSL or 
 * RCSL for the rights, obligations and limitations governing use of the 
 * contents of the file.  
 *  
 * This file is part of the Helix DNA Technology. RealNetworks is the 
 * developer of the Original Code and owns the copyrights in the portions 
 * it created. 
 *  
 * This file, and the files included with this file, is distributed and made 
 * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
 * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS 
 * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
 * 
 * Technology Compatibility Kit Test Suite(s) Location: 
 *    http://www.helixcommunity.org/content/tck 
 * 
 * Contributor(s): 
 *  
 * ***** END LICENSE BLOCK ***** */ 
#ifndef _HXSMBW_H_
#define _HXSMBW_H_
#include "hxcom.h"
/*
 * Forward declarations of some interfaces defined here-in.
 */
typedef _INTERFACE	IHXPlayer		    IHXPlayer;
typedef _INTERFACE	IHXBandwidthManagerInput   IHXBandwidthManagerInput;
class HXSource;
class CHXSimpleList;
/****************************************************************************
 * 
 *  Interface:
 *
 *	IHXBandwidthManager
 *
 *  Purpose:
 *
 *	Implemented by the ASM Manager to allow sources to register
 *	themselves.
 *
 *  IID_IHXBandwidthManager:
 *
 *	{00000800-b4c8-11d0-9995-00a0248da5f0}
 *
 */
DEFINE_GUID(IID_IHXBandwidthManager, 0x00000800, 0xb4c8, 0x11d0,
	    0x99, 0x95, 0x0, 0xa0, 0x24, 0x8d, 0xa5, 0xf0);
#undef  INTERFACE
#define INTERFACE   IHXBandwidthManager
DECLARE_INTERFACE_(IHXBandwidthManager, IUnknown)
{
    /*
     *	IUnknown methods
     */
    STDMETHOD(QueryInterface)	(THIS_
				REFIID riid,
				void** ppvObj) PURE;
    STDMETHOD_(ULONG32,AddRef)	(THIS) PURE;
    STDMETHOD_(ULONG32,Release)	(THIS) PURE;
    /*
     *	IHXBandwidthManager methods
     */
    STDMETHOD(RegisterSource)	(THIS_
				HXSource* pSource,
				IUnknown* pUnknown) PURE;
    STDMETHOD(RegisterSourcesDone)	(THIS) PURE;
    STDMETHOD_(BOOL, NotEnoughBandwidth)(THIS) PURE;
    STDMETHOD(UnRegisterSource)	(THIS_
				HXSource* pSource) PURE;
    /* If the source has enough data, it may tell the bandwidth
     * manager to cut down on accelerated buffering. 
     */
    STDMETHOD(ChangeAccelerationStatus)	(THIS_
				HXSource* pSource,
				BOOL	   bMayBeAccelerated,
				BOOL	   bUseAccelerationFactor,
				UINT32	   ulAccelerationFactor) PURE;
    /* Called by HXPlayer at end of each presentation.  */
    STDMETHOD(PresentationDone)	(THIS) PURE;
    STDMETHOD(ChangeBW) (THIS_ 
		UINT32 newBW, 
		HXSource* pSource) PURE;
};
/****************************************************************************
 * 
 *  Interface:
 *
 *	IHXSourceBandwidthInfo
 *
 *  Purpose:
 *
 *	Implemented by RTSP Transport to associate it with the ASM
 *	manager and set the transmission rate.
 *
 *  IID_IHXSourceBandwidthInfo:
 *
 *	{00000801-b4c8-11d0-9995-00a0248da5f0}
 *
 */
DEFINE_GUID(IID_IHXSourceBandwidthInfo, 0x00000801, 0xb4c8, 0x11d0,
	    0x99, 0x95, 0x0, 0xa0, 0x24, 0x8d, 0xa5, 0xf0);
#undef  INTERFACE
#define INTERFACE   IHXSourceBandwidthInfo
DECLARE_INTERFACE_(IHXSourceBandwidthInfo, IUnknown)
{
    /*
     *	IUnknown methods
     */
    STDMETHOD(QueryInterface)	(THIS_
				REFIID riid,
				void** ppvObj) PURE;
    STDMETHOD_(ULONG32,AddRef)	(THIS) PURE;
    STDMETHOD_(ULONG32,Release)	(THIS) PURE;
    /*
     *	IHXSourceBandwidthInfo methods
     */
    STDMETHOD(InitBw)		(THIS_
				IHXBandwidthManagerInput* pBwMgr) PURE;
    STDMETHOD(SetTransmitRate)	(THIS_
				UINT32 ulBitRate) PURE;
};
/****************************************************************************
 * 
 *  Interface:
 *
 *	IHXBandwidthManagerInput
 *
 *  Purpose:
 *
 *	Implemented by ASM Managers to allow the transport to report
 *	information about bandwidth usage & stats.
 *
 *  IID_IHXBandwidthManagerInput:
 *
 *	{00000802-b4c8-11d0-9995-00a0248da5f0}
 *
 */
DEFINE_GUID(IID_IHXBandwidthManagerInput, 0x00000802, 0xb4c8, 0x11d0,
	    0x99, 0x95, 0x0, 0xa0, 0x24, 0x8d, 0xa5, 0xf0);
#undef  INTERFACE
#define INTERFACE   IHXBandwidthManagerInput
typedef enum _transport_type
{
    TNG_TCP, TNG_UDP
} TRANSPORT_TYPE;
#define REPORT_DATA_PACKET_LOST 0xffffffff
DECLARE_INTERFACE_(IHXBandwidthManagerInput, IUnknown)
{
    /*
     *	IUnknown methods
     */
    STDMETHOD(QueryInterface)	(THIS_
				REFIID riid,
				void** ppvObj) PURE;
    STDMETHOD_(ULONG32,AddRef)	(THIS) PURE;
    STDMETHOD_(ULONG32,Release)	(THIS) PURE;
    /*
     *	IHXBandwidthManagerInput methods
     */
    STDMETHOD(ReportDataPacket)		(THIS_
					UINT32 ulTimeStamp,
					UINT32 ulArrivedTimeStamp,
					UINT32 ulSize) PURE;
    STDMETHOD(ReportUpshiftInfo)	(THIS_
					UINT32 ulTimeStamp,
					UINT32 ulSize) PURE;
    STDMETHOD(ReportLatency)		(THIS_
					UINT32 ulServerTime,
					UINT32 ulClientTime) PURE;
    STDMETHOD(SetCongestionFactor)	(THIS_
					UINT32 ulFactor) PURE;
    STDMETHOD(SetTransportType)		(THIS_
					TRANSPORT_TYPE type) PURE;
};
/****************************************************************************
 * 
 *  Interface:
 *
 *	IHXStreamBandwidthNegotiator
 *
 *  Purpose:
 *
 *	Implemented by ASM Stream objects to give basic information to
 *	the ASM manager.
 *
 *  IID_IHXStreamBandwidthNegotiator:
 *
 *	{00000803-b4c8-11d0-9995-00a0248da5f0}
 *
 */
DEFINE_GUID(IID_IHXStreamBandwidthNegotiator, 0x00000803, 0xb4c8, 0x11d0,
	    0x99, 0x95, 0x0, 0xa0, 0x24, 0x8d, 0xa5, 0xf0);
#undef  INTERFACE
#define INTERFACE   IHXStreamBandwidthNegotiator
DECLARE_INTERFACE_(IHXStreamBandwidthNegotiator, IUnknown)
{
    /*
     *	IUnknown methods
     */
    STDMETHOD(QueryInterface)	(THIS_
				REFIID riid,
				void** ppvObj) PURE;
    STDMETHOD_(ULONG32,AddRef)	(THIS) PURE;
    STDMETHOD_(ULONG32,Release)	(THIS) PURE;
    /*
     *	IHXStreamBandwidthNegotiator methods
     */
    STDMETHOD(SetBandwidthUsage)	(THIS_
					REF(UINT32) ulRecvBitRate,
					REF(BOOL)   bTimeStampDelivery) PURE;
    STDMETHOD(HandleSlowSource)         (THIS_
					UINT32 ulRecvBitRate) PURE;
    STDMETHOD(GetFixedBandwidth)	(THIS_
					REF(UINT32) ulBitRate) PURE;
    STDMETHOD(GetThresholdInfo)		(THIS_
					float*	    pThreshold,
					REF(UINT32) ulNumThreshold) PURE;
    STDMETHOD(UnRegister)		(THIS) PURE;
    STDMETHOD_(ULONG32,GetNumThresholds)(THIS) PURE;
};
/****************************************************************************
 * 
 *  Interface:
 *
 *	IHXStreamBandwidthBias
 *
 *  Purpose:
 *
 *	Implemented by the ASM stmeams (queried from IHXStream)
 *	in order to set/get the current bias factor for
 *      allocation.
 *
 *  IID_IHXStreamBandwidthBias:
 *
 *	{00000804-b4c8-11d0-9995-00a0248da5f0}
 *
 */
DEFINE_GUID(IID_IHXStreamBandwidthBias, 0x00000804, 0xb4c8, 0x11d0,
	    0x99, 0x95, 0x0, 0xa0, 0x24, 0x8d, 0xa5, 0xf0);
#undef  INTERFACE
#define INTERFACE   IHXStreamBandwidthBias
DECLARE_INTERFACE_(IHXStreamBandwidthBias, IUnknown)
{
    /*
     *	IUnknown methods
     */
    STDMETHOD(QueryInterface)	(THIS_
				REFIID riid,
				void** ppvObj) PURE;
    STDMETHOD_(ULONG32,AddRef)	(THIS) PURE;
    STDMETHOD_(ULONG32,Release)	(THIS) PURE;
    /*
     *	IHXStreamBandwidthBias methods
     */
    STDMETHOD(GetBiasFactor)	(THIS_
				REF(INT32) lBiasFactor) PURE;
    STDMETHOD(SetBiasFactor)	(THIS_
				INT32 lBiasFactor) PURE;
};
/****************************************************************************
 * 
 *  Interface:
 *
 *	IHXThinnableSource
 *
 *  Purpose:
 *
 *	Implemented by protocols that allow infinite thinnability through
 *      LimitBandwidthByDropping
 *
 *  IID_IHXThinnableSource
 *
 *	{00000805-b4c8-11d0-9995-00a0248da5f0}
 *
 */
DEFINE_GUID(IID_IHXThinnableSource, 0x00000805, 0xb4c8, 0x11d0,
	    0x99, 0x95, 0x0, 0xa0, 0x24, 0x8d, 0xa5, 0xf0);
#undef  INTERFACE
#define INTERFACE   IHXThinnableSource
DECLARE_INTERFACE_(IHXThinnableSource, IUnknown)
{
    /*
     *	IUnknown methods
     */
    STDMETHOD(QueryInterface)	(THIS_
				REFIID riid,
				void** ppvObj) PURE;
    STDMETHOD_(ULONG32,AddRef)	(THIS) PURE;
    STDMETHOD_(ULONG32,Release)	(THIS) PURE;
    /*
     *	IHXThinnableSource methods
     */
    STDMETHOD(LimitBandwidthByDropping)	(THIS_
					UINT32 ulStreamNo,
					UINT32 ulBandwidthLimit) PURE;
    STDMETHOD(SetDeliveryBandwidth)	(THIS_
					UINT32 ulBandwidth,
					UINT32 ulMsBackOff) PURE;
};
/****************************************************************************
 * 
 *  Interface:
 *
 *	IHXBandwidthNudger
 *
 *  Purpose:
 *
 *	Implemented by the ASM Bandwidth manager (query off IHXPlayer).
 *      This interface allows you to artifically simulate bandwidth
 *	constrained conditions.
 *
 *  IID_IHXBandwidthNudger
 *
 *	{00000806-b4c8-11d0-9995-00a0248da5f0}
 *
 */
DEFINE_GUID(IID_IHXBandwidthNudger, 0x00000806, 0xb4c8, 0x11d0,
	    0x99, 0x95, 0x0, 0xa0, 0x24, 0x8d, 0xa5, 0xf0);
#undef  INTERFACE
#define INTERFACE   IHXBandwidthNudger
DECLARE_INTERFACE_(IHXBandwidthNudger, IUnknown)
{
    /*
     *	IUnknown methods
     */
    STDMETHOD(QueryInterface)	(THIS_
				REFIID riid,
				void** ppvObj) PURE;
    STDMETHOD_(ULONG32,AddRef)	(THIS) PURE;
    STDMETHOD_(ULONG32,Release)	(THIS) PURE;
    /*
     *	IHXBandwidthNudger methods
     */
    STDMETHOD(GetBandwidth)	(THIS_
				REF(UINT32) ulBandwidth) PURE;
    STDMETHOD(SetBandwidth)	(THIS_
				UINT32 ulBandwidth) PURE;
};
/****************************************************************************
 * 
 *  Interface:
 *
 *	IHXASMProps
 *
 *  Purpose:
 *
 *	Implemented by the ASM Stream Object (query off IHXStream).
 *      This interface allows you to get the current predata as stated
 *	in the rulebook.
 *
 *  IID_IHXASMProps
 *
 *	{00000807-b4c8-11d0-9995-00a0248da5f0}
 *
 */
DEFINE_GUID(IID_IHXASMProps, 0x00000807, 0xb4c8, 0x11d0,
	    0x99, 0x95, 0x0, 0xa0, 0x24, 0x8d, 0xa5, 0xf0);
#undef  INTERFACE
#define INTERFACE   IHXASMProps
DECLARE_INTERFACE_(IHXASMProps, IUnknown)
{
    /*
     *	IUnknown methods
     */
    STDMETHOD(QueryInterface)	(THIS_
				REFIID riid,
				void** ppvObj) PURE;
    STDMETHOD_(ULONG32,AddRef)	(THIS) PURE;
    STDMETHOD_(ULONG32,Release)	(THIS) PURE;
    /*
     *	IHXASMProps methods
     */
    STDMETHOD(GetPreData)	(THIS_
				REF(UINT32) ulPreData) PURE;
    STDMETHOD(GetBandwidth)	(THIS_
				REF(UINT32) ulBandwidth) PURE;
};
/****************************************************************************
 * 
 *  Interface:
 *
 *	IHXAtomicRuleChange
 *
 *  Purpose:
 *
 *	Implemented by the RTSP layer in rmacore.
 *      This interface allows you to atomically subscribe and unsubscribe
 *	to a bunch of rules.
 *
 *  IID_IHXAtomicRuleChange
 *
 *	{00000808-b4c8-11d0-9995-00a0248da5f0}
 *
 */
DEFINE_GUID(IID_IHXAtomicRuleChange, 0x00000808, 0xb4c8, 0x11d0,
	    0x99, 0x95, 0x0, 0xa0, 0x24, 0x8d, 0xa5, 0xf0);
#undef  INTERFACE
#define INTERFACE   IHXAtomicRuleChange
DECLARE_INTERFACE_(IHXAtomicRuleChange, IUnknown)
{
    /*
     *	IUnknown methods
     */
    STDMETHOD(QueryInterface)	(THIS_
				REFIID riid,
				void** ppvObj) PURE;
    STDMETHOD_(ULONG32,AddRef)	(THIS) PURE;
    STDMETHOD_(ULONG32,Release)	(THIS) PURE;
    /*
     *	IHXAtomicRuleChange methods
     */
    STDMETHOD(RuleChange)    (THIS_
			     REF(CHXSimpleList) RuleChanges) PURE;
};
/****************************************************************************
 * 
 *  Interface:
 *
 *	IHXAtomicRuleGather
 *
 *  Purpose:
 *
 *	Implemented by the RTSP layer in rmacore.
 *      This interface allows you to atomically subscribe and unsubscribe
 *	to a bunch of rules.
 *
 *  IID_IHXAtomicRuleGather
 *
 *	{00000809-b4c8-11d0-9995-00a0248da5f0}
 *
 */
DEFINE_GUID(IID_IHXAtomicRuleGather, 0x00000809, 0xb4c8, 0x11d0,
	    0x99, 0x95, 0x0, 0xa0, 0x24, 0x8d, 0xa5, 0xf0);
#undef  INTERFACE
#define INTERFACE   IHXAtomicRuleGather
DECLARE_INTERFACE_(IHXAtomicRuleGather, IUnknown)
{
    /*
     *	IUnknown methods
     */
    STDMETHOD(QueryInterface)	(THIS_
				REFIID riid,
				void** ppvObj) PURE;
    STDMETHOD_(ULONG32,AddRef)	(THIS) PURE;
    STDMETHOD_(ULONG32,Release)	(THIS) PURE;
    /*
     *	IHXAtomicRuleGather methods
     */
    STDMETHOD(RuleGather)    (THIS_
			     CHXSimpleList* pList) PURE;
    STDMETHOD(RuleFlush)    (THIS_
			     CHXSimpleList* pList) PURE;
};
/****************************************************************************
 * 
 *  Interface:
 *
 *	IHXPlayerState
 *
 *  Purpose:
 *
 *	Implemented by the HXPlayer object in rmacore.
 *      This interface allows you to determine if we are in a playing
 *	state.
 *
 *  IID_IHXPlayerState
 *
 *	{0000080A-b4c8-11d0-9995-00a0248da5f0}
 *
 */
DEFINE_GUID(IID_IHXPlayerState, 0x0000080A, 0xb4c8, 0x11d0,
	    0x99, 0x95, 0x0, 0xa0, 0x24, 0x8d, 0xa5, 0xf0);
#undef  INTERFACE
#define INTERFACE   IHXPlayerState
DECLARE_INTERFACE_(IHXPlayerState, IUnknown)
{
    /*
     *	IUnknown methods
     */
    STDMETHOD(QueryInterface)	(THIS_
				REFIID riid,
				void** ppvObj) PURE;
    STDMETHOD_(ULONG32,AddRef)	(THIS) PURE;
    STDMETHOD_(ULONG32,Release)	(THIS) PURE;
    /*
     *	IHXPlayerState methods
     */
    STDMETHOD_(BOOL, IsPlaying)    (THIS) PURE;
};
#endif /* _HXSMBW_H_ */

						